anaplasmosis and ehrlichiosis are rickettsial tickborne diseases that have had at least a twofold increase in prevalence in the united states since 2000. despite similar clinical presentations, the causative organisms are carried by different ticks with distinct geographic and ecologic associations. surveillance efforts are complicated by ambiguous terminology and serologic testing with antibody cross-reactivity. although anaplasmosis historically has been reported in maine, ehrlichiosis has bee ...

multitarget test for emerging lyme disease and anaplasmosis in a serosurvey of dogs, maine, usa.

to determine if the range of deer ticks in maine had expanded, we conducted a multitarget serosurvey of domestic dogs (canis lupus familiaris) in 2007. an extension of exposure to borrelia burgdorferi to the northern border and local transmission of anaplasma phagocytophilum throughout southern areas was found.